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contravariant

fun contravariant(type: KType): KTypeProjection

Creates a contravariant projection of a given type, denoted by the in modifier applied to a type. For example, in the type MutableList<in Number>, in Number is a contravariant projection of the type of class Number.

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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.reflect/-k-type-projection/contravariant.html